Truncated tetraheptagonal tilingIn geometry, the truncated tetraheptagonal tiling is a uniform tiling of the hyperbolic plane. It has Schläfli symbol of tr.ImagesPoincaré disk projection, centered on 14-gon:SymmetryThe dual to this tiling represents the fundamental domains of symmetry. There are three small index subgroups constructed from by mirror removal and alternation. In these images fundamental domains are alternately colored black and white, and mirrors exist on the boundaries between colors.